What is a Z-Score?
An example of an AI chatbot conversation about understanding Z-scores in statistics.
Can you explain what a Z-score is?
Sure! A Z-score measures how many standard deviations an element is from the mean of a dataset.
Why is it important to use Z-scores?
Z-scores help in comparing scores from different distributions and identifying outliers.
How do you calculate a Z-score?
To calculate a Z-score, subtract the mean from the value and then divide by the standard deviation.
Can you give me an example of a Z-score calculation?
Of course! If the mean is 100 and the standard deviation is 15, a value of 130 would have a Z-score of 2.
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